Trolley-head.



No. 645,l86. Patented Mar. l3, I900. E. J. HAUCH.

TROLLEY HEAD.

(Application filed. May 24, 1899.)

(No Model.)

UNITED STATES PATENT QFFICE.

EDGAR J. RAUCH, OF BROCKTON,lVIASSAOI-IUSETTS.

TRO LLEY-H EAD.

SPECIFICATION forming part of Letters Patent No. 645,186, dated. March 13, 1900.

Application filed May 24, 1899. Serial No. 718,002. (No model.)

To all whom it may concern:

Be it known that I, EDGAR J. RAUCH, of Brockton, county of Plymouth, and State of Massachusetts,have invented certain new and useful Improvements in Trolley-Heads; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon,which form part of this specification.

My invention has reference to a trolleyhead for street-cars or other vehicles in which electricity is employed as a motive power.

The object of my invention is to provide an improved construction in a trolley-head,

' whereby a more positive connection is secured, and consequently the continuity of the current insured to a greater degree than has heretofore been attained.

My inventiontherefore consists ofcertain novel features of construction and the parts and combination of parts, as hereinafter shown, described, and claimed.

In the drawings, Figure 1 1s a side elevation of my improved trolley-head. Fig. 2 is a front elevation thereof, the trolley-wheel being removed therefrom. Fig. 3 is a section on line a: 00, Fig. 2, showing-the position of thecontact-strips in full lines when the'trolley-wheelis removed and in dotted lines when the wheelis in position. Fig; 4 is a section on line y y, Fig. 3.

My improved trolley-head, consists of the harp-casting 1, which is bifurcated at 2' to permit the revolution of the trolley-wheel between the bifurcated ends 4 and 5. Ends 4 and 5 are drilled out to receive the pin 6 upon which the trolley rotates. 7 and 8 are ordinary split cotter-pins to'hold pin 6 in position. In the end of the harp-casting is inserted the stem 9, having the parallel saw-cuts 10 and 11, respectively, and into which are adapted to be inserted the contact-strips 12 and 13, composed of resilient material, preferably phosphor-bronze. Strips 12 and 13 are constructed of sheet materialof a, thickness to snugly fit into the saw-cuts 10 and 11.

14 is a circular-opening in the strips 12 and 13 to permit the passage of pin 6 therethrough. The strips 12 and 13 are formed with a fiat'bearing or contact portion 15, adapted to bear upon the hub of the trolleywheel, the intermediate curved portion 16 and the fiat portion 17 adapted for insertion into saw-cuts 10 and 11. By disposing the point of attachment of the contact-strips a maximum distance from the contact portion 15 a positive and extremely-sensitive contact and continuous connection is at all times assured. To insert the contact-strips, it is simply necessary to remove pin 6 from the harpcasting and then to insert them into the sawcuts 10 and 11. The operation of removing them is a reversal of that necessary to insert them.-

It is evident that the construction of my invention is extremely simple, dispensing entirely with screws or rivets, and consequently requiring a minimum of time and labor, and therefore expense, to construct and assemble the same.

Having described my invention, What I claim is I V 1. In a trolley-head, the harp-casting bifurcated to receive the trolley-wheel, the stem inserted in the lower end thereof, having parallel saw-cuts therein, adapted to receive metal contact-strips, substantially as shown and described. V.

2. In a trolley-head a bifurcated harp-casting supporting a rotating trolley-wheel between the bifurcated ends thereof, a stem insertedin the lower end of the harp-casting,

parallel saw-cuts in the stem, strips of sheet metal adapted to be inserted in the saw-cuts,

said strips having an intermediate bent portion to permit the unobstructed rotation of the trolley-wheel, and a flat portion to contact with the hub of a trolley-wheel substantially as shown and described.

3.. In a trolley-head the harpcasting 1, the stem 9, the saw-cuts 10 and 11, the contactstrips 12 and 13; having the flat contact portion 15, the curved portion 16, and the flat end 17, substantially asshown and described.

In testimony that I claim the foregoing as my own I affix my signature in presence of two witnesses.

EDGAR J. RAUCI-I.

Witnesses:

CARL H. KELLER, O. H. RAUCH. 

